A system and method for determining the approximate weight of metal consumables used by an electric arc welder over a period of welding time, the system comprises a program to calculate the total energy exerted by the welder over a period of welding, a divider to divide the total energy by a number including a power of a selected non-unity factor to obtain said weight. When the energy is in mega joules the factor is in the range of 3.2–4.2 and preferably approximately 4.0.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A system for determining the approximate weight of metal consumable used by an electric arc welder over a period of welding time, said system including a sensor reading arc current, a sensor reading arc voltage, a multiplier to obtain weld power, a weld time multiplier of said weld power to obtain representation of the total expended joules over said period of welding time, a divider circuit to divide said joules by 1 million to obtain a representation of mega joules and a divider circuit to divide said arc current, said arc voltage, said weld power, said weld time, said joules or said mega joules representation by a selected factor in the range of 3.2 to 4.2 to obtain a value indicative of said approximate weight.
2. A system as defined in claim 1 wherein said divider circuit divides said joules representation by said factor.
3. A system as defined in claim 2 wherein said divider circuit divides said weld power by said factor.
4. A system as defined in claim 3 wherein said selected factor is approximately 4.0.
5. A system as defined in claim 2 wherein said selected factor is approximately 4.0.
6. A system as defined in claim 1 wherein said selected factor is approximately 4.0.
7. A system for determining the approximate weight of metal consumable used by an electric arc welder over a period of welding time, said system comprising a circuit to calculate the total energy exerted by said welder over a period of welding, a divider to divide said total energy by a number including a power of a selected non-unity factor to obtain said weight, said number including the power of the selected non-unity factor being of value which directly obtains said weight.
8. A system as defined in claim 7 wherein said total energy is calculated in mega joules and said non-unity factor is in the range of 3.2–4.2.
9. A system as defined in claim 8 wherein said factor is approximately 4.0.
10. A method for determining the approximate weight of metal consumable used by an electric arc welder over a period of welding time, said method comprising: (a) reading arc current; (b) reading arc voltage; (c) multiplying said arc current with said arc voltage; (d) multiplying said weld power by weld time to obtain a representation of the total expended joules over said period of weld time; (e) dividing said joules by 1 million to obtain a representation of mega joules and, (f) dividing said arc current, said arc voltage, said weld power, said weld time, said joules or said mega joules representation by a selected factor in the range of 3.2 to 4.2 to obtain a value indicative of said approximate weight.
11. A method as defined in claim 10 wherein said joules representation is divided by said factor.
12. A method as defined in claim 11 wherein said weld power is divided by said factor.
13. A system as defined in claim 12 wherein said selected factor is approximately 4.0.
14. A system as defined in claim 11 wherein said selected factor is approximately 4.0.
15. A system as defined in claim 10 wherein said selected factor is approximately 4.0.
16. A method for determining the approximate weight of metal consumable used by an electric arc welder over a period of welding time, said method comprising: (a) calculating the total energy exerted by said welder over a period of welding; (b) dividing said total energy by a number including a power of a selected non-unity factor to obtain said weight, said number including the power of the selected non-unity factor being of a value which directly obtains said weight.
17. A method as defined in claim 16 wherein said total energy is calculated in mega joules and said non-unity factor is in the range of 3.2–4.2.
18. A method as defined in claim 17 wherein said factor is approximately 4.0.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
August 28, 2002
July 4, 2006
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